Finding the Fourth Proportional to 113,133.05, 156,088.49 and 65,368.97
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Solution
The fourth proportional to 113,133.05, 156,088.49 and 65,368.97 is: 90,188.88
Step by Step Solution
- Step 1: Write the proportion equation
113,133.05 : 156,088.49 = 65,368.97 : x - Step 2: Convert to fraction form
113,133.05/156,088.49 = 65,368.97/x - Step 3: Cross multiply
113,133.05x = 156,088.49 × 65,368.97 - Step 4: Simplify right side
113,133.05x = 10,203,342,712.87 - Step 5: Solve for x
x = 10,203,342,712.87/113,133.05 - Step 6: Final answer
x = 90,188.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.